AM79C32A

FINAL Am79C30A/32A Digital Subscriber Controller™ (DSC™) Circuit DISTINCTIVE CHARACTERISTICS s Combines CCITT I.430 S/T-Interface Transceiver, D-Channel LAPD Processor, Audio s Processor (DSC device only), and IOM-2 Interface in a single chip s Special operating modes allow realization of CCITT I.430 power-compliant terminal equipment s S- or T-Interface Transceiver — Level 1 Physical Layer Controller — Supports point-to-point, short and extended passive bus configurations — Provides multiframe support s Certified protocol software support available s CMOS technology, TTL compatible s D-channel processing capability — Flag generation/detection — CRC generation/checking — Zero insertion/deletion — Four 2-byte address detectors — 32-byte receive and 16-byte transmit FIFOs BLOCK DIAGRAM SBP/IOM-2 Interface CAP1 CAP2 SBIN SCLK BCL/CH2STRB* SBIOUT SFS HSW AINA AREF AINB EAR1 EAR2 LS1 LS2 Audio Interface Main Audio Processor (MAP) (Am79C30A Only) Peripheral Port (PP) S/T Line Interface Unit (LIU) D Channel B1 LOUT1 LOUT2 LIN1 LIN2 Bd Be Bf Ba B-channel Multiplexer (MUX) B2 D-Channel Data Link Controller (DLC) XTAL1 XTAL2 MCLK Oscillator (OSC) Bb Bc D Channel CS WR RD Microprocessor Interface (MUX) RESET D7 D6 D5 D4 D3 D2 D1 D0 INT A2 Microprocessor Interface A1 A0 09893H-1 This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or d...